trackoffical_app/lib/service/game/plug_orientation2.dart

import 'dart:async';
import 'package:get/get.dart';
import 'package:trackoffical_app/service/app.dart';
import 'package:sensor/sensor.dart' as sensor;
import 'compass_updater.dart';
import 'plug.dart';

typedef Orientation = sensor.Orientation;


class PlugOrientation extends Plug{
  PlugOrientation();
  final _app = App.to;
  final _angleSrcUpdater = CompassUpdater();
  final orientation=Orientation().obs;
  // /// 指北针弧度，移动时通过GPS判断
  // final compassRadiansFused = 0.0.obs;
  final compassRadiansSrc = 0.0.obs;
  var accelerometerEvent = sensor.Orientation();
  var compassRealNorthOffset = 0.0;

  @override
  Future<void> init() async{

    listenStream(sensor.Sensor.orientationStream, (event) {
      orientation.value = event;

      var direction = event.z;
      if (App.to.userProfile.gameSettingsRealNorth.value) {
        direction += compassRealNorthOffset;
      }

      final src = _angleSrcUpdater.updateRadians(direction);
      if(src!=null){
        compassRadiansSrc.value = -src;
      }
    });
  }

  @override
  Future<void> onClose() async{
    _app.locationStop();
  }
}